ADS1254E

{
  "slug": "ads1254e",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Analog To Digital Converters (ADC), QSOP-20-150mil. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "data acquisition",
    "ads1254e",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ads1254e.kicad_sym",
    "ads1254e.kicad_mod",
    "ads1254e.glb",
    "ads1254e.step",
    "ads1254e.lbr",
    "docs/hero.png",
    "docs/ads1254e-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
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  "component": {
    "mpn": "ADS1254E",
    "manufacturer": "Texas Instruments",
    "package": "QSOP-20-150mil",
    "pin_count": 20,
    "category": "Data Acquisition",
    "subcategory": "Analog To Digital Converters (ADC)",
    "datasheet": "https://www.ti.com/cn/lit/gpn/ads1254",
    "parts": {
      "symbol": "ads1254e.kicad_sym",
      "footprint": "ads1254e.kicad_mod",
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      "model_3d_plain": "ads1254e.glb",
      "model_3d_step": "ads1254e-etched.step",
      "model_3d_step_plain": "ads1254e.step",
      "lbr": "ads1254e.lbr"
    },
    "distributor_links": {
      "lcsc": "C486047"
    },
    "pins": [
      {
        "number": "1",
        "name": "CH1+",
        "type": "input",
        "description": "Positive input of first differential analog channel; accepts ±VREF from AGND to AVDD with ±10mA continuous or ±100mA momentary input current limit"
      },
      {
        "number": "2",
        "name": "CH1–",
        "type": "input",
        "description": "Negative input of first differential analog channel; accepts ±VREF from AGND to AVDD with ±10mA continuous or ±100mA momentary input current limit"
      },
      {
        "number": "3",
        "name": "CH2+",
        "type": "input",
        "description": "Positive input of second differential analog channel; accepts ±VREF from AGND to AVDD with ±10mA continuous or ±100mA momentary input current limit"
      },
      {
        "number": "4",
        "name": "CH2–",
        "type": "input",
        "description": "Negative input of second differential analog channel; accepts ±VREF from AGND to AVDD with ±10mA continuous or ±100mA momentary input current limit"
      },
      {
        "number": "5",
        "name": "CH3+",
        "type": "input",
        "description": "Positive input of third differential analog channel; accepts ±VREF from AGND to AVDD with ±10mA continuous or ±100mA momentary input current limit"
      },
      {
        "number": "6",
        "name": "CH3–",
        "type": "input",
        "description": "Negative input of third differential analog channel; accepts ±VREF from AGND to AVDD with ±10mA continuous or ±100mA momentary input current limit"
      },
      {
        "number": "7",
        "name": "AVDD",
        "type": "power_in",
        "description": "Analog power supply voltage input; requires 4.75V to 5.25V regulated DC supply with 0.8 to 1.15mA quiescent current draw at +5V"
      },
      {
        "number": "8",
        "name": "CLK",
        "type": "input",
        "description": "System clock input; CMOS-compatible Schmitt-Trigger clock operating from DC to 8MHz controlling modulator frequency and data output rate"
      },
      {
        "number": "9",
        "name": "DVDD",
        "type": "power_in",
        "description": "Digital power supply voltage input; requires 1.8V to 3.6V regulated DC supply with 0.2 to 0.4mA quiescent current draw at 1.8V"
      },
      {
        "number": "10",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; leave floating"
      },
      {
        "number": "11",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; leave floating"
      },
      {
        "number": "12",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground reference; connect to digital ground plane as return path for digital power supply and signals"
      },
      {
        "number": "13",
        "name": "DOUT/DRDY",
        "type": "output",
        "description": "Serial data output and data-ready indicator; pulses LOW to indicate new 24-bit conversion result available, then shifts data MSB-first at SCLK falling edge up to 8MHz"
      },
      {
        "number": "14",
        "name": "SCLK",
        "type": "input",
        "description": "Serial clock input; CMOS-compatible Schmitt-Trigger clock operating to 8MHz with LOW normal state; holding HIGH for 4+ cycles synchronizes converters or 20+ cycles enters power-down mode"
      },
      {
        "number": "15",
        "name": "CHSEL1",
        "type": "input",
        "description": "Channel select input bit 1 (MSB); Schmitt-Trigger digital input for selecting one of four analog input channels in combination with CHSEL0"
      },
      {
        "number": "16",
        "name": "CHSEL0",
        "type": "input",
        "description": "Channel select input bit 0 (LSB); Schmitt-Trigger digital input for selecting one of four analog input channels in combination with CHSEL1"
      },
      {
        "number": "17",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground reference; connect to analog ground plane separate from digital ground with single connection point between planes"
      },
      {
        "number": "18",
        "name": "VREF",
        "type": "power_in",
        "description": "Voltage reference input; accepts external reference from 0.5V to VDD with typical 4.096V setting ±4.096V full-scale range and drawing 32μA average current"
      },
      {
        "number": "19",
        "name": "CH4–",
        "type": "input",
        "description": "Negative input of fourth differential analog channel; accepts ±VREF from AGND to AVDD with ±10mA continuous or ±100mA momentary input current limit"
      },
      {
        "number": "20",
        "name": "CH4+",
        "type": "input",
        "description": "Positive input of fourth differential analog channel; accepts ±VREF from AGND to AVDD with ±10mA continuous or ±100mA momentary input current limit"
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 23,
        "cost_usd": 0.3048,
        "at": "2026-09-23T20:25:01"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/ads1254",
        "pages": 23,
        "sha256": "33559a0608db9cd9",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "units": "mm",
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        "zmin_mm": -0.0,
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        "checked": "2026-10-07",
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}